CN101388506B - Electric rice cooker socket intelligently connecting or disconnecting - Google Patents

Electric rice cooker socket intelligently connecting or disconnecting Download PDF

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Publication number
CN101388506B
CN101388506B CN 200810122744 CN200810122744A CN101388506B CN 101388506 B CN101388506 B CN 101388506B CN 200810122744 CN200810122744 CN 200810122744 CN 200810122744 A CN200810122744 A CN 200810122744A CN 101388506 B CN101388506 B CN 101388506B
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China
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connected
cooker
circuit
output
power
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CN 200810122744
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Chinese (zh)
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CN101388506A (en
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宋雪云
朱金荣
杨义军
王茂祥
许煦
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扬州大学
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Abstract

The invention relates to an electric cooker socket which can intelligently power on and power off, which relates to the technical field of electrical parts, wherein a power supply circuit is connected on both ends of alternating-current input voltage, an electric cooker working current amplification and rectification circuit is connected with electric cooker working current, the input end of an electric cooker heating and thermal insulation state judgment and comparison circuit is connected with the output end of the electric cooker working current amplification and rectification circuit, theinput end of a time-delay electrify and electrically-disconnecting circuit is connected with the output end of the electric cooker heating and thermal insulation state judgment and comparison circuit, and an electric cooker working power supply electrifying control circuit is connected with the output end of the time-delay electrify and electrically-disconnecting circuit. The electric cooker socket can automatically cook and automatically power off under the unattended circumstance, which can avoid fire hazard and wiring fault in a certain extend when being used, and further saves electrical energy.

Description

智能通断电的电饭煲插座 Intelligent rice cooker outlet pass off

技术领域 FIELD

[0001] 本发明涉及一种电器件,特别是一种与电饭煲配合使用的插座结构技术领域。 [0001] The present invention relates to an electrical device, in particular technical field structure of a receptacle used in conjunction with the rice cooker. 背景技术 Background technique

[0002] 众所周知电饭煲做出来的饭很香,但上班族往往回家后再开始煮饭,焖的时间不够,饭不香;如果上班前通电,煮熟后自动保温,则焖得太久,吃时米饭会干硬。 [0002] well-known rice cooker made out of rice is very fragrant, but office workers often go home before you start cooking, not enough time to stew, rice is not fragrant; if work before electricity, cooked automatic heat, then simmer for too long, rice will be dry and hard to eat.

发明内容 SUMMARY

[0003] 本发明目的在于为人们提供一种能自动接通和断开电饭煲工作电源电路的电饭煲插座。 [0003] The present invention aims to provide a people automatically switched on and off cooker cooker outlet of the power supply circuit.

[0004] 本发明包括: [0004] The present invention comprises:

[0005] 1)通过常开的继电器触点连接在交流输入电压两端的电饭煲工作电源插座; [0005] 1) connection sockets rice cooker operating power through the AC input voltage across the normally open relay contact;

[0006] 2)电饭煲工作电流放大与整流电路; [0006] 2) rice cooker operating current amplification of the rectifier circuit;

[0007] 3)电饭煲加热和保温状态判断比较电路; [0007] 3) heating and holding state determining cooker comparator circuit;

[0008] 4)由单片机PIC16F630、晶振Y1和若干延时开关按钮组成的延时通电、自动断电电路; [0008] 4) is energized by a delay the PIC16F630 microcontroller, crystal Y1, and a plurality of delay switch buttons, the automatic power down circuit;

[0009] 5)由继电器K1和三极管Q1组成的电饭煲工作电源通电控制电路; [0009] 5) composed of the transistor Q1 and relay K1 rice cooker operating power energization control circuit;

[0010] 6)分别为电饭煲加热和保温状态判断比较电路、电饭煲工作电源通电控制电路和延时通电、自动断电电路提供低压直流电源的供电电路; [0010] 6), respectively, is determined and a comparison circuit heating cooker insulating state, the rice cooker power supply operating power and delay circuit a control circuit is energized to provide low voltage DC power of the automatic power down circuit;

[0011 ] 所述供电电路连接在交流输入电压的两端,电饭煲工作电流放大与整流电路连接电饭煲工作电流,电饭煲加热和保温状态判断比较电路的输入端连接电饭煲工作电流放大与整流电路的输出端,延时通电、自动断电电路的输入端连接电饭煲加热和保温状态判断比较电路的输出端,电饭煲工作电源通电控制电路连接延时通电、自动断电电路的输出端。 [0011] The power supply circuit connected across the ac input voltage, the working current amplifying cooker connection cooker operating current of the rectifier circuit, the input terminal cooker heating and insulation state judgment circuit is connected to comparator cooker operating current amplifying the output of the rectifier circuit, , power delay, the automatic power down circuit connected to an input cooker heating and insulation state judgment output of the comparator circuit, the power energization control cooker working delay circuit is connected is energized, the automatic power-off circuit output.

[0012] 本发明的供电电路主要为各部分电路提供低压直流工作电源,电饭煲工作电流放大与整流电路主要为判断电饭煲处于加热和保温状态提供判断依据,判断电饭煲处于加热和保温状态的比较电路主要为单片机控制部分电路提供工作状态逻辑电平,延时通电和控制部分电路主要为继电器驱动部分提供控制信号,继电器驱动电路主要为继电器的通断提供工作电流。 [0012] The power supply circuit according to the present invention is mainly to provide low voltage DC operating power for the part of the circuit, rice cooker operating current amplification rectifier circuit primarily provides determination basis for determining cooker in the heating and holding a state, it is determined cooker in the heating and holding a state comparator circuit mainly the microcontroller provides a control circuit section operating state logic level, the delay circuit is energized and a control section main relay driving part provides a control signal, the relay drive circuit provided off of the relay operating current of the main.

[0013] 如使用本发明产品,预先往电饭煲中放好米和水,然后通过延时开关按钮选择设置好定时插座接通电饭煲电源的时间,本发明产品就可在设定的时间后自动接通电源,自行煮饭,且自动断开电源。 [0013] The use of products of this invention, previously put into the rice cooker and water, and then select the set timing of turning on the rice cooker outlet through the time delay switch the power button, the product of the present invention can automatically set time after contact turn on the power, self-cooking, and automatically disconnect the power. 当主人回家时便可吃到酥香嫩滑的米饭了,而且该插座能判断米饭是否煮熟并自动切断电饭煲电源。 When the home owner can eat flavorful and tender and the rice, and the socket can determine whether the cooked rice cooker and automatically cut off the power supply. 本发明能在无人看管的情况下煲饭和自动断电,使用该智能通断电的电饭煲插座在一定程度上能够避免火灾隐患和电器故障发生,也能节约宝贵电言旨。 In the present invention can burn unattended and automatic power-off of rice, using the smart cooker outlet through off to some extent possible to avoid a fire hazard and electrical failure, it can be made electrically saving valuable purpose.

[0014] 本发明所述供电电路由变压器T1、整流桥Dl、5V稳压管WDZ和滤波电解电容C2组成,变压器T1的两个输入端与交流输入电压两端连接,变压器T1的两个输出端连接整流桥Dl的两个输入端,5V稳压管WDZ连接在整流桥Dl的两个输出端,滤波电解电容C2并联在5V稳压管WDZ的两端。 [0014] The power supply circuit according to the present invention by a transformer T1, a rectifier bridge Dl, 5V regulator and filter WDZ electrolytic capacitor C2, a transformer T1 is connected to both ends two input terminals AC input voltage, the two output transformer T1 input terminals connected to two ends of the rectifier bridge Dl, WDZ 5V regulator connected to two output terminals of the rectifier bridge Dl, both ends of the smoothing electrolytic capacitor C2 connected in parallel in the 5V regulator WDZ. 为后续电路提供低电压工作电源。 Low voltage operating power for the subsequent circuit.

[0015] 本发明所述电饭煲工作电流放大与整流电路主要由电流互感器TL和电容C2、取样电压电阻R0、电阻R1、运算放大器LM358A、整流二极管D2、滤波电解电容C4组成,电流互感器TL的两个输入端连接在电饭煲工作电流上,电容C2连接在电流互感器TL的两个输出端上,取样电压电阻RO并联在电容C2上,取样电压电阻RO的电压信号与运算放大器LM358A的反相端2脚连接,运算放大器LM358A的1脚输出放大的交流电压信号端连接整流二极管D2,在整流二极管D2的输出端和运算放大器LM358A的S端之间连接滤波电解电容C4。 [0015] The present invention cooker operating current amplification rectifier circuit includes current transformer TL and the capacitor C2, a voltage sampling resistor R0, a resistor R1, an operational amplifier LM358A, rectifying diode D2, C4, electrolytic capacitors, a current transformer TL the two input terminals connected to the cooker operating current, the capacitor C2 is connected at the two outputs of the current transformer TL, a voltage sampling resistor RO connected in parallel with capacitor C2, a voltage sampling resistor RO voltage signal LM358A operational amplifier trans phase terminal connected to pin 2, pin 1 LM358A operational amplifier amplifying the output of the AC voltage signal terminal connected rectifier diode D2, the electrolytic capacitor C4 is connected between the filter end S of the output terminal of rectifier diode D2 and the LM358A operational amplifier.

[0016] 在这里,运算放大器LM358A被接成反相放大器,反相放大器增益在这里仅由Rl和R2的取值决定:K = R2/R1,当电饭煲接通电源开始蒸饭时,感应的电流信号经RO转换为电压信号后输入LM358A的反相端2脚进行放大,运算放大器LM358A的1脚输出放大的交流电压信号,通过二极管D2整流,C4滤波送至比较器部分。 [0016] Here, LM358A operational amplifier is connected as an inverting amplifier, the inverting amplifier gain value is determined only by where Rl and R2 are: K = R2 / R1, when the power is initially turned on steamed rice cooker, electric current induced after the signal is converted into a voltage signal input RO LM358A inverting terminal pin 2 amplifies the output of the operational amplifier pin 1 LM358A amplified alternating voltage signal, through a rectifying diode D2, C4 filter to the comparator portion.

[0017] 所述电饭煲加热和保温状态判断比较电路主要由门限电压电阻R5、R6和运算放大器LM358B组成,门限电压电阻R5、R6串联后连接在整流桥Dl的两个输出端,门限电压电阻R5、R6之间的结点与运算放大器LM358B的反相端6脚连接,运算放大器LM358B输出7 脚输出端经限流电阻R7后与单片机PIC16F630的RAO端连接。 [0017] The mainly by the threshold voltage resistors R5, R6 and an operational amplifier LM358B composition, the threshold voltage of the resistor R5, the R6 connected in series between two output terminals of the rectifier bridge Dl, the threshold voltage of the resistor cooker heating and insulation state judgment comparator circuit R5 , inverting operational amplifier LM358B junction between the end of 6-pin connector R6, the output of the operational amplifier LM358B pin 7 is connected to the output terminal of a microcontroller PIC16F630 RAO after the current limiting resistor R7.

[0018] 判断电饭煲处于加热和保温状态的门限电压由R5和R6组成。 [0018] Analyzing and heating cooker is in the insulating state threshold voltage by R5 and R6. 当电饭煲处于加热状态时,其感应的工作电流经放大整流后,达到比较器的门限电压,运算放大器LM358B的7 脚输出高电平至单片机PIC16F630的RAO端;当电饭煲处于保温时,由于感应的电流信号较小,经放大整流后,不能达到比较器的门限电压,运算放大器LM358B的7脚输出低电平,低电平经R7限流电阻加到单片机PIC16F630的RAO端。 When the rice cooker in a heated state, after which the induced current is amplified rectified operating, reaches the comparator threshold voltage, the operational amplifier LM358B 7 feet high output RAO to the end of the PIC16F630 microcontroller; when incubated in rice cooker, since the induced current signal is small, by the amplified rectified, can not reach the threshold voltage of the comparator, a low output pin 7 of operational amplifier LM358B low level applied through current limiting resistor R7 of the PIC16F630 microcontroller RAO end.

[0019] 本发明所述延时通电、自动断电电路的单片机PIC16F630的vdd端连接在5V稳压管WDZ的输出端,单片机PIC16F630的RAO端为电平信号输入端,晶振Yl的两端连接在单片机PIC16F630的两个OSC端上,各延时开关按钮分别与单片机PIC16F630连接,单片机PIC16F630的RC3输出高电平。 [0019] The present invention power delay, automatic power circuit of a microcontroller PIC16F630 vdd is connected to the output of 5V regulator WDZ, PIC16F630 microcontroller RAO end of a level signal input terminal, connected to both ends of the crystal Yl OSC on both ends of the PIC16F630 microcontroller, each respectively connected to the delay switch button microcontroller PIC16F630, PIC16F630 microcontroller output high of RC3.

[0020] 当按下延时开关按钮时分别延时设计的60分钟、120分钟、180分钟、240分钟、300 分钟等,使单片机RC3输出高电平至驱动部分。 [0020] When the delay are delay switch button is pressed design 60 minutes, 120 minutes, 180 minutes, 240 minutes, 300 minutes, etc., causes the microcontroller to RC3 output high drive section. 同时结合前极的电平信号进行智能控制。 Combined level of the signal before the intelligent control electrode. [0021 ] 本发明电源通电控制电路的继电器Kl负极端接5V稳压管WDZ的输出端,继电器Kl与三极管Ql的集电极连接,三极管Ql的基极通过串联的电阻R8与单片机PIC16F630的RC3输出高电平端连接,三极管Ql的发射极接地,电饭煲电源插座的一脚连接与继电器Kl 相应的常开开关,另一脚与电流互感器TL连接。 [0021] The negative electrode collector is connected to relay Kl 5V regulator WDZ terminating the output of the power energization control circuit of the invention, the relay Kl and transistor Ql, the base of transistor Ql via resistor R8 in series PIC16F630 microcontroller output RC3 high end is connected, the emitter of transistor Ql is grounded, is connected to the relay Kl cooker foot outlet corresponding to a normally open switch, and the other leg connected to the current transformer TL.

[0022] 当设定的延时时间到达后,单片机PIC16F630的RC3输出高电平经电阻R8到三极管Ql的基极,三极管Ql导通,集电极上继电器J合,其常开触点K闭合连通电饭煲插座电源。 [0022] After the set delay time arrives, the microcontroller PIC16F630 high RC3 output transistor Ql via resistor R8 to the base of transistor Ql is turned on, the collector of the relay J, the normally open contact is closed K communication socket power rice cooker.

[0023] 另,本发明还在继电器Kl的正、负两端连接整流二极管D4。 [0023] Also, the present invention also relay Kl positive and negative ends are connected rectifier diode D4. 在晶体管Ql截止后为继电绕组中的电流提供一条回路,从而避免绕组产生过大的感应电势损坏三极管。 Providing a return path for current in the relay windings of the transistor Ql is turned off, thus avoiding excessive damage to the transistor winding generates a large induced electrical potential.

[0024] 当电饭煲加热时,由于线路中有较大的工作电流,整流二极管D2不断地受到触发,运算放大器LM358B的7脚输出高电平到单片机RA0,故电饭煲不会断电;当电饭煲处于保温状态时,由于线路中工作电流较小,整流二极管D2无触发电压而截止,运算放大器LM358B的7脚输出低电平到单片机PIC16F630的RAO脚,故电饭煲由单片机延时一定后自动断电。 [0024] When the heating cooker, since a larger line current, the rectifier diode D2 being continuously output trigger pin 7, the operational amplifier RA0 LM358B high level to the microcontroller, it is not cooker off; when the cooker is when the insulating state, since the operating current line is small, no trigger voltage rectifying diode D2 is turned off, the output pin 7 of operational amplifier LM358B low level to a PIC16F630 microcontroller RAO foot, so cooker by the microcontroller after a certain delay off automatically.

附图说明 BRIEF DESCRIPTION

[0025] 图1为发明的一种电路原理图。 [0025] FIG. 1 is a circuit diagram of a principle of the invention.

[0026] 图2为5V直流电源的供电电路原理图; [0026] FIG. 2 is a circuit diagram of the power supply of 5V DC power supply;

[0027] 图3为电饭煲工作电流放大与整流电路原理图; [0027] FIG. 3 is a cooker operating current amplifying circuit diagram of the rectifier;

[0028] 图4为判断电饭煲处于加热和保温状态的比较电路原理图; [0028] FIG. 4 is a schematic circuit diagram of the comparison determination in rice cooker heating and holding state;

[0029] 图5为延时通电和控制部分电路原理图; [0029] FIG. 5 is a time delay and a portion of the energization control circuit diagram;

[0030] 图6为继电器驱动部分电路原理图。 [0030] FIG. 6 is a circuit diagram of a relay driving portion.

具体实施方式 Detailed ways

[0031] 本发明主要由通过常开的继电器触点连接在交流输入电压两端的电饭煲工作电源插座、电饭煲工作电流放大与整流电路、电饭煲加热和保温状态判断比较电路、延时通电、自动断电电路、电饭煲工作电源通电控制电路和分别为电饭煲加热和保温状态判断比较电路、电饭煲工作电源通电控制电路和延时通电、自动断电电路提供5V直流电源的供电电路组成,如图1、2、3、4、5、6所示。 [0031] The present invention is mainly composed of an input connected to the AC voltage across the normally open relay contact cooker working power outlet, rice cooker operating current amplifying circuit and the rectifier, rice cooker heating and insulation state judgment comparator circuit, power delay, automatic power-off circuit, the power energization control circuit working rice cooker and rice cooker were heated and insulated state judgment comparator circuit, the power energization control circuit cooker working power and delay, the automatic power down circuit providing a supply of 5V DC power circuit, as shown in 1 and 2, As shown 3,4,5,6.

[0032] 5V直流供电电路由变压器Tl、整流桥D1、5V稳压管WDZ和滤波电解电容C2组成, 变压器Tl的两个输入端与交流输入电压两端连接,变压器Tl的两个输出端连接整流桥Dl 的两个输入端,5V稳压管WDZ连接在整流桥Dl的两个输出端,滤波电解电容C2并联在5V 稳压管WDZ的两端。 [0032] 5V DC power feed circuit from the transformer Tl, the rectifying bridge and filter D1,5V regulator WDZ electrolytic capacitor C2, the transformer Tl is connected to the input terminals of the two ends AC input voltage, the two output terminals of the transformer Tl is connected two input terminals of the rectifier bridge Dl, WDZ 5V regulator connected to two output terminals of the rectifier bridge Dl, both ends of the smoothing electrolytic capacitor C2 connected in parallel in the 5V regulator WDZ.

[0033] 电饭煲工作电流放大与整流电路主要由电流互感器TL和电容C2、取样电压电阻R0、电阻Rl、运算放大器LM358A、整流二极管D2、滤波电解电容C4组成,电流互感器TL的两个输入端连接在电饭煲工作电流上,电容C2连接在电流互感器TL的两个输出端上,取样电压电阻RO并联在电容C2上,取样电压电阻RO的电压信号与运算放大器LM358A的反相端2脚连接,运算放大器LM358A的1脚输出放大的交流电压信号端连接整流二极管D2,在整流二极管D2的输出端和运算放大器LM358A的S端之间连接滤波电解电容C4。 [0033] cooker operating current amplification rectifier circuit includes current transformer TL and the capacitor C2, a voltage sampling resistor R0, the resistance Rl, the operational amplifier LM358A, rectifying diode D2, C4, electrolytic capacitors, two input current transformer TL end is connected to the operating current of the rice cooker, the capacitor C2 is connected at the two outputs of the current transformer TL, a voltage sampling resistor RO connected in parallel with capacitor C2, the voltage signal LM358A operational amplifier inverting voltage sampling resistor RO terminal pin 2 connection pin output LM358A operational amplifier amplified AC voltage signal terminal connected rectifier diode D2, the electrolytic capacitor C4 is connected between the filter end S of the output terminal of rectifier diode D2 and the LM358A operational amplifier.

[0034] 电饭煲加热和保温状态判断比较器电路主要由门限电压电阻R5、R6和运算放大器LM358B组成,门限电压电阻R5、R6串联后连接在整流桥Dl的两个输出端,门限电压电阻R5、R6之间的结点与运算放大器LM358B的反相端6脚连接,运算放大器LM358B输出7脚输出端经限流电阻R7后与单片机PIC16F630的RAO端连接。 [0034] cooker heating and insulation state judgment comparator circuit mainly by the threshold voltage resistors R5, R6 and an operational amplifier LM358B composition, the threshold voltage of the resistor R5, the R6 connected in series between two output terminals of the rectifier bridge Dl, the threshold voltage of the resistor R5, inverting operational amplifier LM358B junction between the end of 6-pin connector R6, LM358B the operational amplifier output terminal connected to the output pin 7 of a microcontroller PIC16F630 RAO of the current limiting resistor R7.

[0035] 延时通电、自动断电电路的单片机PIC16F630的vdd端连接在5V稳压管WDZ 的输出端,单片机PIC16F630的RAO端为电平信号输入端,晶振Yl的两端连接在单片机PIC16F630的两个OSC端上,各延时开关按钮分别与单片机PIC16F630连接,单片机PIC16F630的RC3输出高电平。 [0035] The delay power, the automatic power down circuit of a microcontroller PIC16F630 vdd is connected to the 5V output of regulator WDZ, PIC16F630 microcontroller RAO end of a level signal input terminal, connected to both ends of the oscillator Yl is the PIC16F630 microcontroller OSC two ends, each connected to the delay switch buttons microcontroller PIC16F630, PIC16F630 microcontroller output high of RC3.

[0036] 电源通电控制电路的继电器Kl负极端接5V稳压管WDZ的输出端,继电器Kl与三极管Ql的集电极连接,三极管Ql的基极通过串联的电阻R8与单片机PIC16F630的RC3输出高电平端连接,三极管Ql的发射极接地,电饭煲电源插座的一脚连接与继电器Kl相应的常开开关,另一脚与电流互感器TL连接。 [0036] The negative electrode collector is connected to relay Kl 5V regulator WDZ terminating the output of the power energization control circuit, relay Kl and the transistor Ql, the base of transistor Ql via resistor R8 RC3 output in series with the microcontroller PIC16F630 high electric blunt-end ligation, the emitter of transistor Ql is grounded, is connected to the relay Kl cooker foot outlet corresponding to a normally open switch, and the other leg connected to the current transformer TL. 继电器Kl的正、负两端连接整流二极管D4。 Positive and negative across the relay Kl connected rectifier diode D4.

Claims (5)

  1. 智能通断电的电饭煲插座,包括:1)通过常开的继电器触点连接在交流输入电压两端的电饭煲工作电源插座;2)电饭煲工作电流放大与整流电路;3)电饭煲加热和保温状态判断比较电路;4)由单片机PIC16F630、晶振Y1和若干延时开关按钮组成的延时通电、自动断电电路;5)由继电器K1和三极管Q1组成的电饭煲工作电源通电控制电路;6)分别为电饭煲加热和保温状态判断比较电路、电饭煲工作电源通电控制电路和延时通电、自动断电电路提供低压直流电源的供电电路;所述供电电路连接在交流输入电压的两端,电饭煲工作电流放大与整流电路连接电饭煲工作电流,电饭煲加热和保温状态判断比较电路的输入端连接电饭煲工作电流放大与整流电路的输出端,延时通电、自动断电电路的输入端连接电饭煲加热和保温状态判断比较电路的输出端,电饭煲工作电源通 Smart Power switching cooker socket, comprising: 1) is connected via normally open relay contacts work in the rice cooker outlet ends of the AC input voltage; 2) amplification cooker operating current of the rectifier circuit; Comparative 3) heating and holding state determining cooker circuit; 4) is energized by a delay the PIC16F630 microcontroller, crystal Y1, and a plurality of delay switch buttons, the automatic power down circuit; 5) rice cooker operating power energization control circuit of the transistor Q1 and relay K1 thereof; 6) are heated cooker and insulation state judgment comparator circuit, the power energization control circuit cooker working power and delay, the automatic power down circuit to provide the low voltage DC power supply circuit; the power supply circuit connected across the ac input voltage, the rectifier cooker operating current amplifying circuit operating current connection cooker, rice cooker heating and insulation state judgment circuit connected to an input comparator cooker operating current amplifying the output of the rectifier circuit, power delay, the automatic power down circuit connected to an input cooker heating and insulation state judgment output of the comparator circuit end, the power supply through the cooker 控制电路连接延时通电、自动断电电路的输出端;所述供电电路由变压器T1、整流桥D1、5V稳压管WDZ和滤波电解电容C2组成,变压器T1的两个输入端与交流输入电压两端连接,变压器T1的两个输出端连接整流桥D1的两个输入端,5V稳压管WDZ连接在整流桥D1的两个输出端,滤波电解电容C2并联在5V稳压管WDZ的两端;其特征在于电饭煲工作电流放大与整流电路主要由电流互感器TL和电容C2、取样电压电阻R0、电阻R1、运算放大器LM358A、整流二极管D2、滤波电解电容C4组成,电流互感器TL的两个输入端连接在电饭煲工作电流上,电容C2连接在电流互感器TL的两个输出端上,取样电压电阻R0并联在电容C2上,取样电压电阻R0的电压信号与运算放大器LM358A的反相端2脚连接,运算放大器LM358A的1脚输出放大的交流电压信号端连接整流二极管D2,在整流二极管D2的输出端和运算放 A control circuit coupled to the timer is energized, the automatic power down circuit output terminal; the power supply circuit by a transformer T1, a bridge rectifier and filter D1,5V regulator WDZ electrolytic capacitor C2, and the two input terminals of the AC input voltage of the transformer T1 connected across the two output terminals of the transformer T1 is connected to two input terminals of the rectifier bridge D1, WDZ 5V regulator connected to two output terminals of the rectifier bridge D1, smoothing electrolytic capacitor C2 connected in parallel in two of 5V regulator WDZ end; wherein the operating current amplification cooker rectifier circuit includes current transformer TL and the capacitor C2, a voltage sampling resistor R0, a resistor R1, an operational amplifier LM358A, rectifying diode D2, C4, electrolytic capacitors, the two current transformer TL input terminal connected to the cooker operating current, the capacitor C2 is connected at the two outputs of the current transformer TL, a voltage sampling resistor R0 is connected in parallel with capacitor C2, the voltage signal inverting terminal of the operational amplifier LM358A voltage sampling resistor R0 pin 2 is connected to pin 1 of the output of the operational amplifier LM358A amplified AC voltage signal terminal connected to the rectifier diode D2, the diode D2 is placed at the output of the rectifier operation and 器LM358A的S端之间连接滤波电解电容C4。 Electrolytic capacitor C4 is connected between terminal S of an LM358A.
  2. 2.根据权利要求1所述智能通断电的电饭煲插座,其特征在于所述电饭煲加热和保温状态判断比较电路主要由门限电压电阻R5、R6和运算放大器LM358B组成,门限电压电阻R5、R6串联后连接在整流桥Dl的两个输出端,门限电压电阻R5、R6之间的结点与运算放大器LM358B的反相端6脚连接,运算放大器LM358B输出7脚输出端经限流电阻R7后与单片机PIC16F630的RAO端连接。 The off the cooker 1 through intelligent socket claim, wherein said heating and holding state determining cooker comparator circuit threshold voltage mainly by the resistors R5, R6 and an operational amplifier LM358B composition, the threshold voltage of resistors R5, R6 in series after connecting the two output terminals of the rectifier bridge Dl, the threshold voltage of the resistor R5, R6 and the junction between the inverting terminal of the operational amplifier LM358B the 6-pin connector, the operational amplifier output terminal LM358B output pin 7 through a current limiting resistor R7 RAO PIC16F630 microcontroller is connected to an end.
  3. 3.根据权利要求2所述智能通断电的电饭煲插座,其特征在于所述延时通电、自动断电电路的单片机PIC16F630的vdd端连接在5V稳压管WDZ的输出端,单片机PIC16F630的RAO端为电平信号输入端,晶振Yl的两端连接在单片机PIC16F630的两个OSC端上,各延时开关按钮分别与单片机PIC16F630连接,单片机PIC16F630的RC3输出高电平。 The intelligent 2 through the socket off the cooker as claimed in claim wherein said delay is energized, the VDD terminal of the microcontroller PIC16F630 automatic power-off circuit is connected to the output of 5V regulator WDZ, the PIC16F630 microcontroller RAO level signal is input to the end terminal, both ends of the oscillator Yl is coupled to the two ends of OSC PIC16F630 microcontroller, and each are connected to the delay switch button microcontroller PIC16F630, PIC16F630 microcontroller output high of RC3.
  4. 4.根据权利要求3所述智能通断电的电饭煲插座,其特征在于电源通电控制电路的继电器Kl负极端接5V稳压管WDZ的输出端,继电器Kl与三极管Ql的集电极连接,三极管Ql 的基极通过串联的电阻R8与单片机PIC16F630的RC3输出高电平端连接,三极管Ql的发射极接地,电饭煲电源插座的一脚连接与继电器Kl相应的常开开关,另一脚与电流互感器TL连接。 The intelligent 3 through the socket off the cooker as claimed in claim, wherein the collector connected to the output terminal of the power relay Kl energization control circuit terminating 5V negative regulator of WDZ, transistor Ql and relay Kl, the transistor Ql RC3 base connected through resistor R8 and the output terminal of the high level of the series of PIC16F630 microcontroller, emitter of the transistor Ql is grounded, is connected to the relay Kl cooker foot outlet corresponding to a normally open switch, another current transformer leg TL connection.
  5. 5.根据权利要求4所述智能通断电的电饭煲插座,其特征在于在继电器Kl的正、负两端连接整流二极管D4。 The powering off of the cooker 4 intelligent socket according to claim, wherein the rectifying diode D4 is connected to the positive and negative ends of the relay Kl.
CN 200810122744 2008-06-27 2008-06-27 Electric rice cooker socket intelligently connecting or disconnecting CN101388506B (en)

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Application Number Priority Date Filing Date Title
CN 200810122744 CN101388506B (en) 2008-06-27 2008-06-27 Electric rice cooker socket intelligently connecting or disconnecting

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Application Number Priority Date Filing Date Title
CN 200810122744 CN101388506B (en) 2008-06-27 2008-06-27 Electric rice cooker socket intelligently connecting or disconnecting

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CN101388506B true CN101388506B (en) 2010-11-03

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Publication number Priority date Publication date Assignee Title
CN102081367A (en) * 2011-01-25 2011-06-01 浙江申乐电气有限公司 Simple timer
CN102386900A (en) * 2011-01-25 2012-03-21 浙江申乐电气有限公司 Multi-potential digital timer
CN102074417A (en) * 2011-01-25 2011-05-25 浙江申乐电气有限公司 Digital timer
CN102629724A (en) * 2012-04-29 2012-08-08 李良杰 Intelligent socket
CN104880975B (en) * 2014-02-28 2018-11-06 深圳市海洋王照明工程有限公司 Low-voltage chip controls the interface circuit and low-voltage control circuit of high tension apparatus
CN104104373B (en) * 2014-07-28 2017-03-29 衢州昀睿工业设计有限公司 A kind of plesichronous socket circuit being made up of not gate
CN104092450B (en) * 2014-07-29 2017-03-29 衢州昀睿工业设计有限公司 The regular socket circuit being made up of NAND gate
CN106264160B (en) * 2015-06-01 2019-02-15 佛山市顺德区美的电热电器制造有限公司 The recognition methods of the culinary art type of electric cooking pot and electric cooking pot

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